<template>
  <transition name="slide">
    <div class="add-song" v-show="showFlag" @click.stop>
      <div class="header">
        <h1 class="title">添加歌曲到列表</h1>
        <div class="close" @click="hide">
          <i class="icon-close"></i>
        </div>
      </div>
      <div class="search-box-wrapper">
        <search-box ref="serachBox" @query="onQueryChange" placeholder="搜索歌曲"></search-box>
      </div>
      <div class="shortcut" v-show="!query">
        <switches :switches="switches" :currentIndex="currentIndex" @switch="switchItem"></switches>
        <div class="list-wrapper">
          <scroll ref="songList" v-if="currentIndex===0" class="list-scroll" :data="playHistory">
            <div class="list-inner">
              <song-list :songs="playHistory" @select="selectSong">
              </song-list>
            </div>
          </scroll>
          <scroll :refreshDelay="refreshDelay" ref="searchList" v-if="currentIndex===1" class="list-scroll"
                  :data="searchHistory">
            <div class="list-inner">
              <search-list @delete="deleteOneSearchHistory" @select="addQuery" :searches="searchHistory"></search-list>
            </div>
          </scroll>
        </div>
      </div>
      <div class="search-result" v-show="query">
        <suggest :query="query" :showSinger="showSinger" @select="selectSuggest" @listScroll="blurInput"></suggest>
      </div>
      <top-tip ref="topTip">
        <div class="tip-title">
          <i class="icon-ok"></i>
          <span class="text">1首歌曲已经添加到播放列表</span>
        </div>
      </top-tip>
    </div>
  </transition>
</template>

<script>
  import SearchBox from '../base/search-box/search-box.vue';
  import Scroll from '../base/scroll/scroll.vue';
  import SongList from '../base/song-list/song-list.vue';
  import Switches from '../base/switches/switches.vue';
  import SearchList from '../base/search-list/search-list.vue';
  import TopTip from '../base/top-tip/top-tip.vue';
  import Suggest from '../suggest/suggest.vue';
  import {searchMixin} from '../../common/js/mixin.js';
  import Song from '../../common/js/song.js';
  import {mapGetters, mapActions} from 'vuex';

  export default {
    mixins: [searchMixin],
    components: {SearchBox, Scroll, SearchList, TopTip, Suggest, Switches, SongList},
    data () {
      return {
        showFlag: false,
        showSinger: false,
        refreshDelay: 100,
        switches: [
          {name: '最近播放'},
          {name: '搜索历史'}
        ],
        currentIndex: 0
      };
    },
    computed: {
      ...mapGetters([
        'playHistory',
        'searchHistory'
      ])
    },
    methods: {
      hide () {
        this.showFlag = false;
      },
      show () {
        this.showFlag = true;
        setTimeout(() => {
          if (this.currentIndex === 0) {
            this.$refs.songList.refresh();
          } else {
            this.$refs.searchList.refresh();
          }
        }, 20);
      },
      selectSuggest () {
        this.saveSearch();
      },
      switchItem (i) {
        this.currentIndex = i;
      },
      selectSong (song, index) {
        if (index !== 0) {
          this.insertSong(new Song(song));
          this.$refs.topTip.show();
        }
      },
      ...mapActions([
        'insertSong'
      ])
    }
  };
</script>

<style lang="less" scoped="">
  @import "~common/css/variable.less";
  @import "~common/css/mixin.less";

  .add-song {
    position: fixed;
    top: 0;
    bottom: 0;
    width: 100%;
    z-index: 200;
    background: @color-background;
    &.slide-enter-active, &.slide-leave-active {
      transition: all 0.3s;
    }
    &.slide-enter, &.slide-leave-to {
      transform: translate3d(100%, 0, 0);
    }
    .header {
      position: relative;
      height: 44px;
      text-align: center;
      .title {
        line-height: 44px;
        font-size: @font-size-large;
        color: @color-text;
      }
      .close {
        position: absolute;
        top: 0;
        right: 8px;
        .icon-close {
          display: block;
          padding: 12px;
          font-size: 20px;
          color: @color-theme;
        }
      }
    }
    .search-box-wrapper {
      margin: 20px;
    }
    .shortcut {
      .list-wrapper {
        position: absolute;
        top: 165px;
        bottom: 0;
        width: 100%;
        .list-scroll {
          height: 100%;
          overflow: hidden;
        }
        .list-inner {
          padding: 20px 30px;
        }
      }
    }
    .search-result {
      position: fixed;
      top: 124px;
      bottom: 0;
      width: 100%;
    }
    .tip-title {
      text-align: center;
      padding: 18px 0;
      font-size: 0;
      .icon-ok {
        font-size: @font-size-medium;
        color: @color-theme;
        margin-right: 4px;
      }
      .text {
        font-size: @font-size-medium;
        color: @color-text;
      }
    }
  }
</style>
